The only one module I've bought in AliExpress is Elechouse V2.0 FM radio transmitter module: But unfortunately my module is a bit defective. It works as I2C device; all registers are available for ...

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An hourglass tells you what it is in the name — a glass that you use to measure an hour of time passing by. [EDISON SCIENCE CORNER] has built a digital project that mimics such a thing, with little ...

Abstract: The radio waves commonly used in terrestrial wireless communication are severely absorbed by the conductive seawater. However, the low-frequency magnetic fields can penetrate a much farther ...

Abstract: A four-channel mode division multiplexing (MDM) transmitter is demonstrated with $4 \times 80$ Gbps signaling, assisted with a low-loss two-dimensional grating coupler over $1.85 ~\text{mm}^ ...